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Finding the Fourth Proportional to 166,453.60, 249,712.80 and 48,128.80

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Solution

The fourth proportional to 166,453.60, 249,712.80 and 48,128.80 is: 72,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,453.60 : 249,712.80 = 48,128.80 : x
  2. Step 2: Convert to fraction form
    166,453.60/249,712.80 = 48,128.80/x
  3. Step 3: Cross multiply
    166,453.60x = 249,712.80 × 48,128.80
  4. Step 4: Simplify right side
    166,453.60x = 12,018,377,408.64
  5. Step 5: Solve for x
    x = 12,018,377,408.64/166,453.60
  6. Step 6: Final answer
    x = 72,202.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.